Linux

CentOS Stream 9 — logrotate — vulnerability — patch and remediation guide — diagnosis and fix on CentOS Stream 9

CentOS Stream 9 — logrotate — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2022 Affected versions: CentOS Stream 9 📖 ~4 min read  •  Source: AlmaLinux/RHEL advisory ALSA-2022:8393 Related CVEs: CVE-2022-1348 Upstream summary: The logrotate utility simplifies the administration of multiple log files by allowing their automatic rotation, compression, removal, and mailing. Security Fix(es): * logrotate: potential DoS […]

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How To Install WordPress with LAMP on Ubuntu 18.04 — step-by-step Linux tutorial on Progressive Robot

How To Install WordPress with LAMP on Ubuntu 18.04

WordPress is the most popular CMS (content management system) on the internet. It allows you to easily set up flexible blogs and websites on top of a MySQL backend with PHP processing. In this guide, we’ll focus on getting a WordPress instance set up on a LAMP stack (Linux, Apache, MySQL, and PHP) on an Ubuntu 18.04 server.

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Oracle Linux 8 — expat — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — expat — vulnerability — patch and remediation guide (ELSA-2023-0103)

🟡 Medium   ⏱ 10–30 min  Last verified: 30 December 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-0103 Related CVEs: CVE-2022-43680 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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How To Install Linux, Nginx, MySQL, PHP (LEMP) Stack on CentOS 8 — step-by-step Linux tutorial on Progressive Robot

How To Install Linux, Nginx, MySQL, PHP (LEMP) Stack on CentOS 8

The LEMP software stack is a group of software that can be used to serve dynamic web pages and web applications written in PHP. The name “LEMP” is an acronym that describes a Linux operating system, with an (E)Nginx web server. The backend data is stored in a MariaDB database and the dynamic processing is handled by PHP. In this guide, you’ll install a LEMP stack on a CentOS 8 server using MariaDB as the database management system.

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Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 9

Oracle Linux 9 — GraalVM — vulnerability — patch and remediation guide (ELSA-2023-12314)

🟠 High   ⏱ 15–60 min  Last verified: 30 December 2022 Affected versions: Oracle Linux 9 📖 ~4 min read  •  Source: ELSA advisory ELSA-2023-12314 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan […]

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Common Problems 117966

Ubuntu 18.04 LTS – system boots to grub rescue after package update – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 29 December 2022 Affected versions: Ubuntu 18.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]

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Common Problems 116964

Ubuntu 22.04 LTS EXT4 Remounts Read-Only After I/O Errors

🟡 Medium   ⏱ 5–30 min  Last verified: 29 December 2022 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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AlmaLinux 9 — xterm — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on AlmaLinux 9

AlmaLinux 9 — xterm — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 9 📖 ~4 min read  •  Source: AlmaLinux ALSA ALSA-2025:14075 Related CVEs: CVE-2022-24130 CVE-2022-45063 Upstream summary: The xterm program is a terminal emulator for the X Window System. It provides DEC VT102 and Tektronix 4014 compatible terminals for programs that can't […]

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Debian 11 — xtrans — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — xtrans — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 December 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2006-4447 Upstream summary: X.Org and XFree86, including libX11, xdm, xf86dga, xinit, xload, xtrans, and xterm, does not check the return values for setuid and seteuid calls when attempting […]

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How To Manually Install Oracle Java on a Debian or Ubuntu VPS — step-by-step Linux tutorial on Progressive Robot

How To Manually Install Oracle Java on a Debian or Ubuntu VPS

Java is a programming technology originally developed by Sun Microsystems and later acquired by Oracle. Oracle Java is a proprietary implementation for Java that is free to download and use for commercial use, but not to redistribute, therefore it is not included in a officially maintained repository.

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